And kudos to Jr_tech for posting Pete Deksnis' excellent horizontal scan treatise..
http://www.earlytelevision.org/Deksn...implified.html
Generation of the horizontal sweep sawtooth is "taken for granted" without much thought to the arcana behind it. Pete's tutorial translates easily to B&W tube topologies as well (except for a few of those early oddballs that used a single tube for both oscillator and sweep
and no damper).